Ours is a Sony Bravia that is now over 10 years old. Several months ago we started noticing lines, especially on the left (our left) side of the screen. They’d go away after the tv warmed up. Then we started noticing it was darker on that side of the screen, but again, after the tv warmed up the screen would be normal. Then about two months ago it started getting worse and didn’t ever get completely better, even after the tv warmed up. So I watched some youtube videos that all talked about the ribbon cables becoming loose over time and to apply pressure along the top and see if that made it better, and if so, it was a loose cable and if you put electrical tape or something that would help keep the pressure, it would fix the problem. Hubby pressed along the top and sure enough, when he pressed in one spot on the left side suddenly the picture cleared up. Stayed good for about a week, then problems again, pressed again, fixed again. A week or so later, same problem, but this time when he pressed on it nothing got better.
So I decided to take the cover off and look at it better. As I was pressing on the tops of the ribbon cables that run down from the top of the frame, for a minute it got better but then suddenly there was a wide white vertical line, with a thin green one down the center of it, running down the front of the screen, and it was perfectly aligned with one of the cables. So now I still have the dark side of the screen, and some ghosting, and some lines, but now this bright white streak/line right down the front. Another weird thing is that if the whole screen is bright (like watching a show set in a snowy place) then the darkness even on the left side is basically gone, but if the scene is dark at all, that side is almost black. I don’t know if it means that particular ribbon cable is bad, or if something is loose, if things need to be replaced or what. It’s very frustrating as it’s been a great tv. Hubby wants to just buy a new one, but even if he does I would still like to try and figure out this one as it could then go in another room.
Cette réponse est-elle utile ?
I guess its not the Tcon , but the main-board flash ic problem issue. check whether the 5.5 v mosfet is overheating by touching it.
I have Sony Bravia LED 3D TV KDL 43W950D. Sl no. 8526842.
Few days before i,e. on 15/12/2020 in the morning when I was started my tv it was displayed white screen then blinking red 5 times and so on. I have informed to Sony Service station then service engineer came to me on18/12/2020 and open the back cover and clean the dust then tv was o.k. I have given him Rs.1300.00 as a service charge. Next day morning same problem appeared. Again service engineer come to me and open the back cover and done something again tv was restored. Next day again same problem appeared he came to me and put software for update then tv was restored and he told me it was a problem of Tcon board but Sony does not supply only tcon board so I have to purchase full panel and it will cost more then 17 thousand. Next day morning same problem persist. why he try to replaced my tv parts instead of minor repairing? Let me know what is the actual problems.
par Samir Kumar Mukherjee
@samir kumar mukherjee, do you know where can we get a full panel?